public class Keyboard implements Usb{
    @Override
    public void OpenDevice() {
        System.out.println("连接键盘");
    }

    public void inpurt() {
        System.out.println("疯狂使用键盘");
    }
    @Override
    public void CloseDevice() {
        System.out.println("断开键盘");
    }
}
